<template>
  <div class="tabs">
    <el-tag
            v-for="(tag, index) in tags"
            :key="tag.name"
            :closable="tag.name !== 'home'"
            :effect="$route.name === tag.name ? 'dark' : 'plain '"
            @click="changeMenu(tag)"
            @close="handleClose(tag,index)"
            size="small"
    >
      {{ tag.label }}

    </el-tag>
  </div>
</template>

<script>
  import { mapState, mapMutations } from 'vuex'
    export default {
        name: 'CommonTag',
        data() {
          return {
          }
        },
        computed: {
            ...mapState({
                tags: state => state.tab.tabsList
          })
        },
        methods: {
            ...mapMutations({
                close: 'closeTag'
            }),
            changeMenu(item) {
              this.$router.push({name: item.name})
            },
            handleClose(tag, index) {
             const length = this.tags.length - 1
             this.close(tag)
                if(tag.name !== this.route.name) {
                  return;
                }
                if (index === length){
                    this.$router.push({
                      name: this.tags[index - 1].name
                    })
                }else {
                    this.$router.push({
                        name: this.tags[index].name
                    })
                }
            }
        }
    }
</script>

<style lang="less" scoped>
  .tabs {
    padding: 20px;
    .el-tag {
      margin-right: 15px;
      cursor: pointer;
    }
  }
</style>
